Tuesday, January 26, 2021

How to Find... anything. #2: How to find recipes and nutrition information

 How to find Recipes & Nutrition Information 



Introduction


Haven’t we all searched for recipes?    Whenever we’re trying to get dinner just right, or when exploring a new culinary idea. Sometimes we’ll do comparisons (how do other people make dinner rolls?), or sometimes we are looking for the best source of a recipe we have heard about (what was the original “no-knead” bread recipe?).  Then again, sometimes we are  just on the hunt for dishes that include our new ingredient obsession--this week it’s porcini mushrooms (got a great deal at the Farmer’s Market!), but next week it could be broccolini, kohlrabi, or maybe we’re just looking for new ideas for strawberry desserts. 


Image by Monicore from Pixabay



You can keep that trusty soup-stained cookbook on the shelf, it might have family heirloom recipes that you can’t find online, but this chapter is about how to find (and sometimes filter) recipes beyond the scope of even the largest cookbook you might have on your shelf. You can even please those picky eaters by improving your web search results to show recipes based on ingredients, cooking time, or calorie preferences. 


Practical tip: While we’re going to talk about searching for recipes and nutritional information, if truth be told, when we find a recipe we like, we make a copy of the online recipe (with attribution and any production notes we learn along the way).  Why?  Recipes have an unfortunate tendency to disappear on the web.  Besides, if we really like something, we’ll probably make it again.  Back up your recipes by having local copies, if only so you can re-find it easily. Or import them in a recipe app so you can edit, organize them, share them across devices and have a backup in the cloud.  


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What are recipes?  


For the purposes of this chapter, a “recipe” is any written down list of instructions and ingredients that you use to put together a particular dish.  It might be extensive and careful, or it might be minimalist with just a few clues about how to put together a dish.  For our purposes, recipes are easy to find--just use the term “recipe” along with whatever you want to look up specifically.  


Notice that some recipes (such as Mark Bittman’s excellent collection) are more guidelines to entire categories of food, rather than just a simple step-by-step recipe.  Each recipe tells how to make the dish, but also ways to vary it and make many different variations on a theme. They’re on the borderland between a cooking encyclopedia and a recipe box. 


On the other hand, some recipes have tons of information about how to make that particular kind dish--they’re a little like mini-tutorials in the Spend With Pennies or Epicurious web sites. These recipes often have videos to show techniques, or background information on the cultural aspects of the recipes.  Fascinating stuff.   


And sometimes you want to look up a particular technique that’s linked to a food.  What really is “pressed duck” after all?  Can I make it at home?  How about phyllo dough?  In these cases, you also want a recipe, but you REALLY need to know the technique as well.  For such technique-heavy recipes, you want one of these “enhanced” recipes.  


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What is nutrition information?  


As you’re cooking, or planning on cooking, there are times when you’d like to know what exactly it is that you’re putting into your dish.  It’s fairly easy to find the nutritional information for your ingredients with a query like this (suppose you’re making a passion fruit mousse): 


[ nutrition passion fruit


The result will have a panel on the right hand side of the search results page--it it look like this: 




Note that this will work for many fruits, vegetables, meat, fish (etc.), not ALL possible foods have detailed nutritional information that can be found on the Google knowledge panel.  As of this writing dragon fruit (a popular fruit native to Mexico and Central America, it goes by many names, including pitaya, pitahaya, and strawberry pear) doesn’t have detailed USDA information, although this will probably change over time.


But the USDA site does have an incredible range of nutrition information about foods that you might not expect.  Check out: https://fdc.nal.usda.gov/ for full details.  (For instance, did you know that goat meat has 143 calories / 100 grams?) 


By the way, using the USDA site you can also find that dragon fruit has 260 calories in each 100 grams of fruit, and is high in calcium to boot!  



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Recipe Search Methods


Broadly speaking, these methods are all ways to translate what you know about an educational need into search-engine specific strategies.  


1.  Search by dish: This is often the way people think about cooking: “I want to make lasagna” or “I want to make pad thai.”  Unless you’re searching for a dish that’s incredibly obscure, a good search is something like this: 


[ recipe for lasagna

[ recipe for pad thai


Note that if you’re searching for a particular kind of national dish (e.g., goulash, which in Hungarian is gulyás), try searching for the name in the language of origin: 


  [ recipe for gulyás ]


If you can read the local recipe language, even better search in that language to find possibly a more authentic version. Usually you’ll find sites that are dedicated to transcending national boundaries--in this case, you’ll find recipes that tell you how to make an authentic Hungarian gulyás, along with helpful tips about how to substitute location-specific ingredients. (e.g., do you actually need to use Hungarian paprika?)


To find recipes within a given country, use the site: operator to search ONLY in that country.  Just use the country code.  (List of all country codes.)   Note that you’ll have to use the local language word for “recipe.”  For example, here’s how to search for Bolognese lasagna recipes from Italian web sites. 


        [ ricetta lasagne alla bolognese  site:.IT


2.  Search by ingredient: So you couldn’t pass up the rutabaga at the farmer’s market but you’re not exactly sure what to make with it? Now you can slice and dice your farmer’s market bounty into tasty dishes by searching by ingredient. Simply type rutabaga into your search and get plenty of ideas. 


[ recipes that use rutabaga


This works especially well when you’ve got a few random ingredients in your kitchen and need to find a recipe that uses them.  In this case, just list all your ingredients, and see what you can discover!  For example:  


[ recipes rutabaga spinach cheese


3. Search by holiday or event: Hosting a baby shower or event and need to whip up some mouth-watering dishes to feed 50?  Simply type the event name + recipes and you’ll see plenty of dishes. 


[ baby shower recipes ]

[ kids birthday party recipes ]

[ traditional Swedish holiday recipes ]


4. Search by calories: Are you trying to consume fewer calories or have less fat in your diet?  Search for recipes with descriptive terms.  Examples: 


[ lasagna recipe with fewer calories

[ lasagna recipe healthy

[ lasagna recipe less fat


5. Search by cooking time:  When you’re pressed for time, you might want to find recipes that can be done in a certain amount of time.  Here, the trick is to search for recipes with a time that’s specified.  When you do these searches, try to use times like “30 minutes” or “1  hour” since that’s what people usually write.  Searching for recipes that take 48 minutes to complete probably won’t work well.  Here are some sample timed recipe searches: 


[ recipes under 15 minutes  ] 

[ stew recipe 2 hours

[ vegan chili recipe under 3 hrs ]   — hrs is a common abbreviation 


You can also use descriptions of the amount of time:  


[ soup recipe long slow

[ slow food confit recipe ] 



6. Search by favorite chef or restaurant: A handy search method is to search by celebrity chef name or the name of a restaurant that has a dish you want to emulate.  You can’t always find the exact recipe, but there’s probably a pretty good version of it out on the internet. 

[ recipes by Poilâne ]  (note that [ recipes by Poilane ] also works)  

[ recipes by Jose Andres ]  (or, José Andrés also works)  

[ recipes by Greens Restaurant


7. Search for video:  Learning a cooking technique is usually MUCH easier if you have a model to follow.  Remember to search in videos to learn the techniques or methods you want to learn. 


In Videos: 

[ how to make paneer

[ how to make an omelette

[ how to make strudel dough


8. Search by images:  Looking for a picture of something will often let you hone in on the thing you want to make, but don’t know the name!  For instance, if you’re looking for a kind of cheese appetizer that came in a little cup-like thing with turned-up corners, a search like this will get your an answer quickly: 


Note the second row of suggestions (party, toothpicks, easy, prosciutto, puff pastry, etc.).  Those can also be very handy in finding what you seek.


Searching for images is also a very good way to learn how to plate and present the food in an aesthetically pleasing way. We start eating with our eyes first, think when you go to a great restaurant and their presentation of a dish. 


It’s also a great way to learn what a particular kind of food / fruit / vegetable looks like--it will make your shopping experience much simpler if you can recognize it in the market!  We were looking for a Buddha’s hand fruit, but didn’t quite know what to look for in the grocery.  This is what it looks like: 





9. Search by cooking technique or cooking tool  

Many times you want to expand your knowledge of a cooking technique (e.g. sous-vide) or a tool (cast iron). Other times you are a big fan of a particular cooking technique, (e.g. steaming) or you are cooking at a friend or family’s location or you are travelling and cooking in a rental and you have access to a limited set of tools or, maybe to a set of tool you do not know how to use (pressure cooker) 


[ cast iron peppers]

[ steamed broccoli]

[ pressure cooker rice]

[ slow cooker chili ] 



10. Search within your favorite recipe website


This search is a bit different because it assumes you have a favorite or a set of favorite recipe websites. The more you search for recipes the more you will learn which ones you like--then you can use the site: operator to search within them.  


Some recipe websites are subscription based, so not all recipes and techniques are available for free.  Sample searches that we use inside a site are: 


  [ site:epicurious.com vegetarian bean chili ] 

[ site:nytimes.com no knead bread ] 

        [ site:jamieoliver.com hot cross buns ]




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Conversions:  How many tablespoons in a cup?  Or, going from ounces to grams!   


The quantity of a recipe can be written in different measuring systems. So you might need to convert quantities from one measurement to another.  European recipes often give quantities in metric measurements (grams), while US recipes often give them in quantities (cups, tablespoons).  


Note that when doing weight measures to volume measures you will have to look up the conversion rate.  If a recipe asks for 500 grams of flour, but you have only US measuring cups, you’ll have to figure out what the conversion rate is.  A quick trick is to do this query: 


  [ grams of flour in cups ] 


Google will then show you a handy conversion chart: 




Of course, if you want to just convert from grams to ounces (or the other way around), you can just do the conversion query: 


[ 25 grams in ounces ] 

[ 1 pound in grams ] 


This is also really handy for conversions within the English (or Imperial) measurements: 


[ 16 tablespoons in cups ] 


Or you can ask a question: 


[ how many cups in a pint? ] 



Another kind of common searches while cooking are for ingredient substitutions. For example, you want to make tamales and you do now have or cannot easily find corn husks. What can you do?  This works well for exotic ingredients that  you might not have, such  as corn husks (used in tamales), or asafoetida (an Indian spice):  


[ tamales corn husks substitution ]

[  tamales corn husks alternative ]

[ asafoetida substitute



Cooking Techniques  


A common search is for methods of doing particular skills in the kitchen.  For example, if you’re  not comfortable with your knife chopping technique, consider doing a search on how to handle knives.  A search on: 


[ How to cut an avocado ]

[ How to cut a bagel ] 

[ How to chop onions ]


might avoid a trip to the emergency room.   In the same vein, learning how to sharpen a knife, mince garlic, or make a perfect crepe are all easy searches.  




Recipe apps


Recipe app web, desktop, or mobile apps allow you to write, organize, store, and import recipes from the web. These apps can save you a lot of time and help you to build your own cookbook. You could start by typing your grandma’s favorite recipe on the app and use it on your smartphone when cooking, even when you’re not in your own home.  Apps also allow you to quickly scale a recipe depending on how many people you need to cook for.

These apps generally allow you to export and share your apps with your friends and family including adding pictures.




Dealing with variation between recipes


As you’ve probably noticed, there can be many different versions of a recipe.  Few people agree about the right way to roast a chicken, make cupcakes, or bake bread.  Part of the joy of cooking is learning to understand the variations between recipes.  


For this reason, we typically look at more than one recipe when making a particular dish.  A search for something simple, say… 


[ recipe enchiladas ] 

[ recipe lasagna ] 


Will quickly show you the huge variation in styles, ingredients, and methods (do you want fast, low-fat, for parties, meatless, with red sauce or bechamel).  


Don’t be intimidated by the number of different variations on the theme, but use them to compose and create your own masterpiece.  


Enjoy!  





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Summary


In this chapter we’ve shown you how to search for: 


  • Nutrition information


  • Recipe search methods 

1. by name of dish 

2. by ingredients 

3. by holiday or event 

4. by calories 

5. by cooking time – times, durations 

6. by chef or restaurant 

7. search for videos 

8. search for images 

9. by cooking technique or tool 

10. search inside a recipe website 


  • Conversions (metric to English, and back)

  • Cooking techniques (and tools) 


  • Recipe apps (to manage your recipes) 

  • Dealing with variation between recipes




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Key lessons:   


A.  There are many ways to search for a recipe--by dish, ingredients, style, time-to-cook, etc.  Just add in the extra search terms to search by those different properties. 


B. Using the conversions methods (e.g., grams to ounces) is incredibly useful when using metric recipes.  This is just as true to convert measurements within the English units as well.  (We can never remember how many tablespoons are in a cup.  Can you?)  


C. Search for images and videos to help deepen your understanding of what the different foods and techniques are.  The number of methods and technique videos are astounding.  They often can teach you a method that was previously available only by a long apprenticeship.  Watch those videos before trying it on your own.  (There are important methods to know, ones that could prevent a cooking injury or make that omelette just perfect.)  


Wednesday, January 20, 2021

SearchResearch Challenge (1/20/21): A war on pests?

 

Too much of anything can be a problem... 


... Too much water in the wrong place at the wrong time is a flood.  And too many birds in the wrong place can be a problem as well.  

This week's Challenge highlights a couple of wrong-place & too-many times when people went to work to fix the problem, but it completely and utterly failed.  These aren't hard, but are pretty amazing in their details.  Can you figure out what's going on in each of these Challenges? 


1. Too many birds really can be a problem.  In one famous incident, an entire "War" was declared on a particular kind of bird.  Big guns were brought out, the campaign planned, thousands of shots were fired, and it all ended in a dismal failure.  Where was this war?  What kind of birds were being fought? And in the end, what happened?  


2. Too many insects can be a problem as well, especially when then fly around en masseCan you find the largest grouping of insects that caused enormous problems with the local agriculture?  Why do those insects group together?  And why do those groupings finally end?  


These Challenges can take you far into some fascinating rabbit holes (another kind of pest in some locations), but keep your wits about you and let us know how you answered these Challenges.  

As always, we're interested in how you found the solutions to these Challenge questions.  Let us know in the comments.  


Search on! 



Monday, January 18, 2021

New Series: How to Find... anything. #1: How to find Do-it-yourself information


Welcome to a new series of "How to Find... anything" posts.  



My friend Mario Callegaro and I have been talking for years about pulling together a series of posts that are all "How to Find..." mini-tutorials for a number of topics. Our plan is to put out about one post each week, each post covering another specific "How to Find.." topic area.  

This week, for example, is all about How to Find "Do-it-yourself (DIY) information."  In future episodes we'll discuss how to find other topic area like medical information, or educational content, or recipes, or travel information.  

As we've taught people how to search over the years, we've noticed that for every special domain (DIY, medicine, education, recipes, travel) that there's often something else to know about searching in that area--some additional bits of information about the domain that would help you search more effectively.  

So, to address this, we've written about 10 such posts, and will put them out at about one post per week for the next couple of months.  

At the end, we'll pull all of the searching tips together into a compendium that will be very SearchResearch-like as a summary.  

THEN we hope to pull all of these posts together into a single document that you'll be able to print for yourself, use in your classes, or (with luck) buy as an online book.  

Our hope is to provide a bunch of easy-to-read information about how to search in a given area.  So we're really looking for feedback about each chapter, and about the idea overall.  

Please leave comments in the comment area below.  We'll read them with interest, and will try to make this series into something truly useful for everyone.  

Enjoy.  

Dan & Mario 



 

Thursday, January 14, 2021

Answer: What else falls from the sky?

 It's remarkable what falls from the sky...   



Last week I posed these Challenges about objects falling from the sky.  Were you able to figure them out? Here's what I did to answer them... 

1.  As you can see in the above image, meteor showers (or as in this image, a meteor storm) can be impressive.  But it took the world a remarkably long time to believe that stone really fell from the sky.  Can you figure out when people started to believe that rocks really fell from the sky?  (Hint: There's not a singular event for this, but you should be able to figure out when the common understanding of meteors / meteorites changed.)  

A quick Search-by-Image with the above image tells us that this was the Leonid meteor shower of 1833.  








That's pretty straightforward, but how do you find out about some more complex question like this?  ("When did people start to believe ...")  

I wasn't sure how to start this out, so I tried the simplest query that I could work: 

     [ people believe in meteors ] 

I chose this query because I figured that someone would have written something about the change in belief.  Meteors are well known, and every so often one DOES fall in an inhabited area.  

I was pleased to find a Smithsonian magazine article that people (in Europe at least) first saw rocks fall from the sky in L’Aigle in (Normandy, France) in 1803.  At that shower, at least 3,000 identifiable stones fell.  Not long before, a physicist named Ernst Chladni had published a book (1794) suggesting that meteorites came from space. He was reluctant to publish because he knew that he was “gainsaying 2,000 years of wisdom, inherited from Aristotle and confirmed by Isaac Newton, that no small bodies exist in space beyond the Moon.” 

Meteorites have been known for a while (after all, even the Pharaoh Tutankhamun had a dagger made of meteoric iron), but making the connection between shooting stars and the rocks that could be found on the ground took time.  

Reading the Smithsonian article made me think that another framing for this might be as story from history.  So my next query was: 

    [ history of meteorites ] 

Here I chose "meteorites" as a special term since meteorites are meteors that have made it to the ground.  So I thought looking up the history of the idea would be useful.  I was rewarded with the Wikipedia article on Meteorites.  In there we find this section:  

"...[Chladni's] booklet was "On the Origin of the Iron Masses Found by Pallas and Others Similar to it, and on Some Associated Natural Phenomena."  

(Side note: We've talked about Peter Pallas before.)   

"In this booklet he compiled all available data on several meteorite finds and falls concluded that they must have their origins in outer space. The scientific community of the time responded with resistance and mockery.  It took nearly ten years before a general acceptance of the origin of meteorites was achieved through the work of the French scientist Jean-Baptiste Biot and the British chemist, Edward Howard.  Biot's study, initiated by the French Academy of Sciences, was compelled by a fall of thousands of meteorites on 26 April 1803 from the skies of L'Aigle, France"

I found this fascinating: Chladni figured out the meteor / meteorite connection by data analysis. That work was then replicated by Biot and Howard, driven by the L'Aigle meteorite shower!  

But the bottom line seems to be that European science (and the populace as a whole) didn't really accept "rocks falling from the sky" as a real thing until around 1800.  
 

2.  As it turns out, it's not just stones that fall from the sky, but lots of other things as well.  Fish are particularly common.  Can you find a compelling / plausible / believable example of fish falling from the sky?  (No, Sharknado doesn't count...) 

Searching for [ fish fall from sky ] leads to a whole host of web pages documenting various kinds of fish falling out of the sky.  The trick here is to find sources that are credible.  The Wikipedia page for Rain of animals documents many instances of animals falling from the sky, starting with Pliny the Elder reporting frogs and fish.  Meanwhile, residents of Yoro, Honduras, claim that "fish rain" happens every summer--something so common it's called Lluvia de Peces.  

The New York Times article (July 16, 2017) discusses rain of fish in Yoro,  although they point out that nobody has actually seen fish fall from the sky.  (It could be an upwelling of water + fish from underground sources.   Other good sources include a brief from Western Texas A&M universityAustralia Geographic, Science, and NPR.  The most common explanation has to do with fierce dust devils or actual waterspouts (tornados over water) that pick up surface fish from a body of water and then drop them at a distance from the source.  Interestingly, the fish falls seem to be fairly limited in scope (something like 300m by 30m) and always of fish that can be found in nearby lakes and streams.  It's fairly easy to find mentions of fish-rains in Google Books (e.g., The Tornado: Nature's Ultimate Windstorm).  

So, yes, fish can fall from the sky--not as a supernatural event, but through a little wind-assist!  

 

3.  Can you find a place where diamonds rain down from the sky?  How is that even possible?  

This seems implausible at best, fanciful even.  But I took up the Challenge with a simple question: 

     [ where do diamonds rain from the sky? ] 

Much to my surprise, I found a LOT of results. Here's the SERP I saw: 


As with the fish-rain Challenge, the question really is how reliable are these sources?  (I mean, it seems like a crazy question!)  

BBC Earth documentary video on this Challenge can be found on YouTube:  



The video describes weather on Saturn and Jupiter; there are gigantic storms with massive electrical discharges--all that lightning transforms methane into huge clouds of soot (carbon), and, as that soot falls downward, the pressure and heat is so great that the carbon crystallizes into diamonds.  Then, at 40,000km below the surface, it all starts to liquify.  

Fascinating--but believable?  

This let me take a close look at the first BBC hit reported on diamond rain on Saturn and Jupiter, but more importantly, this article gave me a link to a paper in Nature (the science journal).  "Diamond drizzle forecast for Saturn and Jupiter" Maggie McKee (Oct, 2013).  This in turn led to another paper by Mona Delitsky and K. H. Baines. "Diamond and other forms of elemental carbon in Saturn’s deep atmosphere." American Astronomical Society, DPS meeting #45, (Oct. 2013).  

As this article points out, "At the boundaries (locations of sharp increases in density) on Jupiter and Saturn, there may be diamond rain or diamond oceans sitting as a layer. However, in Uranus and Neptune, the temperatures never reach as high as 8000 K. The cores are ~5000K, too cold for diamond to melt on these planets. Therefore, it appears that diamonds are forever on Uranus and Neptune but not on Jupiter and Saturn."  

Yes, there are probably diamond-laden beaches on Uranus and Neptune, while on Jupiter and Saturn it rains diamonds, but as they fall deeper into the higher temperatures of lower layers, they liquify into carbon rain.  

But how can we be sure?  As one of these articles pointed out, "the chemistry is fairly well-understood, so we're confident in these predictions..."  I'm not a high-temperature / high-pressure chemist, but I believe people who are.  

So I believe in diamond-sand beaches, and diamonds falling as rain... 


SearchResearch Lessons 


There are a couple of things to note here... 

1.  When looking for something as abstract as a belief change, you need to look for documents that record the shift.  Often this involves looking for histories of the event.  If you're lucky (as we were here), you can find a small number of documents that record the first event, the first expressed belief, and the solidification of that belief.  It might be a little more tricky to find slower changes, or ones that are less well documented!  

2.  Asking the question in a question form is becoming a really valuable technique. A question like "where do diamonds rain from the sky" isn't handled as a conjunction of terms, but is handled by a question-answering facility--this is incredibly useful for finding concepts that you might not know quite how to express!  (Interestingly, I found other planets where it rains rubies and sapphires.  You never know what you'll find until you look!)  Notice that if you ask a silly question, Google will give you results (e.g., [ where does it rain palm trees? ]) and NOT answers to your questions.  It's an important difference.  

Search on! 



Wednesday, January 6, 2021

SearchResearch Challenge (1/6/2021): What falls from the sky?

Welcome to 2021!  


Before we get to our main topic today, let me give you a quick update on the blog.  

SearchResearch began just about 11 years ago, on January 30, 2010.  Since then I've written 1218 posts (just over 1 / week) and together we've written over 7000 comments!  

We've had over  3.7M reads during that time--usually averaging around 20K readers / month, which puts SRS into a fairly active realm of blog sites.  Thanks, Regular Readers!  

Another interesting factoid:  Most readers use a Windows machine to access SRS, but the two biggest browsers are Chrome and Firefox. 

And, as you know, the book The Joy of Search, came out of this blog.  MANY thanks to all who contributed comments and thoughts about the book (and the Challenges that went into the book).  

Thus far, The Joy of Search has sold more than 5K copies, which I'm very pleased about.  I won't be able to retire to Tahiti on the book proceeds, but I did buy a nice, new bike to celebrate.  The whole book-writing process worked out well enough that I'm working on another book.  (Which you'll hear more about later this year. Stay tuned.)  

Thanks again to everyone--all of your thoughts and contributions make my life easy (and it's great fun to see all of the comments)!  

On to this week's Challenges.... 

As I've mentioned before, I have a file of ideas about Challenges for SRS.  I was just browsing through it the other day when I noticed three different ideas that would all fit together in a nice package.  Can you find the answers? 

1.  As you can see in the above image, meteor showers (or as in this image, a meteor storm) can be impressive.  But it took the world a remarkably long time to believe that stone really fell from the sky.  Can you figure out when people started to believe that rocks really fell from the sky?  (Hint: There's not a singular event for this, but you should be able to figure out when the common understanding of meteors / meteorites changed.)  

2.  As it turns out, it's not just stones that fall from the sky, but lots of other things as well.  Fish are particularly common.  Can you find a compelling / plausible / believable example of fish falling from the sky?  (No, Sharknado doesn't count...) 

3.  Can you find a place where diamonds rain down from the sky?  How is that even possible?  

As usual, let us know HOW you found the answers!  

Search on! 

 

Wednesday, December 30, 2020

SearchResearch Extra: Tab to search - a handy pro shortcut

 

Happy end of 2020!  


I'm sure 2020 will be the topic of endless PhD theses in the future, but at the moment, I'm just as happy to move on in to a brighter future.

But I wanted to leave you with a little gift--a pro tip that I use all the time, but I realized the other day that not everyone knows about!  To fix this gap in world knowledge, I put together a little 1MM (1-Minute Morceaux video) for you on how to use tab-to-search.  This search trick saves me a lot of time, and just might save you a few extra milliseconds.  

(The key idea is that you can often use the sites' own search utility (if they have one!) to search their site in the way that THEY think is best.  This isn't the same as the SITE: search you all know and love, but it uses the site's own search too.)  

Link to the 1MM video:  Tab to Search 

Enjoy. 

And search on! 




Wednesday, December 23, 2020

SearchResearch End-of-year Summary

 

This is the last SRS post of 2020.... 


.... thank heavens!  

As you know, it's been a strange year, but we've soldiered forward with 26 Challenges (and 26 Answers), a bunch of additional content (both Extras and Public Service Announcements).  We had just over 1100 comments--thanks Regular Readers!  

To take a look back is always rewarding--so here's my Year in SRS view.  


The Challenges went like this.. Remember these?  

Mysterious rainbows and fossils in the floor 

Canary Islands cooking (Originally called "Where's this place?") 

What is Bernard singing about? 




How to find old songs  (YouTube is remarkably helpful in finding old tunes. This includes REALLY old tunes, e.g., Gregorian chants.)  

Does banning plastic bags actually help the environment?  (It's not clear that it does.)   

When to provide context?  (If your research question has any depth, you need to provide some context for your answer.  Big tip: Almost all questions require context.)  


What research questions you’re doing?  (No surprise here, most people are searching for COVID.)  


Videos about finding credible medical content 


Finding the right names to search for something
(Really useful for odd names like: Alison Guyot, Franklin Dixon, or the name of the  ÷ and ⌘ symbols)


Using archival news (To see what happened in the Spanish Flu pandemic of 1918, and how that might be relevant to us in 2020) 

San Francisco Examiner, Jan 20, 1919


Extramusical sounds  (What are those sounds that you hear in the background of some music?)  

Finding national anthems (Find the national anthems of Hawai'i and other state or national anthems that are NOT in the local language.  There are more than you might think!) 

Why do beans and peas move as they grow?  (Because they're thigmotropic in order to find good scaffolding. Be sure to look that one up!) 

Finding collections of online content  (Because sometimes the best way to a source is to find the collection, and then search inside of that.)  

Were there gomphotheres in Panama?  (Yes, there were. And they migrated from North to South American when the Isthmus of Panama became a thing...)  

Gomphotheres were native to North America. You might have had
one in your backyard 2.5M BCE.


Finding the latest COVID regulations  (This should be simple.  It's not. Here's how.)  

Curious state boundaries (inclusions along state borders)  (I had no idea...)  

Finding a time-lapse of wildfire growth (It's not obvious how to do this.) 

Everyday fact-checking: What do you do?  (SRS Readers search a lot!) 

Digging deeper into the story behind a photo (Contrails are complex beasts.)  



The natural history of kelp forests  (They're not doing well, but there are signs of hope!)

Urban development in the Indio/Coachella area  (A LOT of golf courses were built.)  

Who survived from the Mayflower?   (Answer: Not many...) 

The mystery of the polygonal areoles on autumn grape leaves (We didn't really find an answer... at least not yet.  Continuing to work on this.  More insights as we learn more.) 




And there were a few Extras: 

Double quotes / negative transfer (video)  (Sometimes you do NOT want to use double quotes when searching!)  

Fluff filters (Make it your reading habit to ignore fluff that's in the document. Here's how.) 

How to find the Utah monolith in the SRS way (There are people with a lot of free time...)  


Even more wildfire tracking sites (If you live in fire-prone areas, you might want to track these sites.) 

Even MORE collections (Yes!  Love collections.)  



A few Public Service Announcements: 


Started a new Search Education YouTube channel  (There are six now... more are coming.  Subscribe and stay in touch with the latest.)  

PowerSearching course now on edX  (The Advanced PowerSearching Course will be coming soon!)


3D flying in Google Maps (The most fun you can have while sitting at your desktop. No, really!)  



6 things to know about videoconferences (Big tip: Practice before you go live!) 


Looking forward to next year? 


I certainly am looking forward. The mysteries never seem to end, and since Google search is constantly changing, we'll be back here during 2021 to document the new ways you can search online.  Stay tuned!  

And leave a comment on which Challenges you liked (and which you didn't care for).  That will be useful information as we push forward into the information forest.  

Search on! 


Wednesday, December 16, 2020

Answer: The mystery of the grape leaf polygonally changing color

 Fascinating... 


AS YOU RECALL.. 

I was emailing with my artist friend Lynne Garell who captured a set of photos that are striking. I've never seen any leaves change color quite like this: 

A grape leaf closeup. P/C Lynne Garell, from her series of grape leaf images 

 How does this happen? How can a polygonal piece of a leaf all change at once?  Is this the way all leaves change?  What's going on here? 

Another image from her series: 



What's going on here isn't at all obvious... 

Here are the Challenges I set out last week.  

To begin with, I really had no ideas, but I realized that I needed some basic terminology.  So I dealt with Challenge 2 first... 

2. To answer this question for myself, I thought I'd first find out what each of those polygonal sections is called, and then search on that term.  But I couldn't find it!  So, a Challenge for you:  What is that part of the leaf called?  Here's an image that I made to illustrate the question: 


That thing...  what's it called?  These polygons, like the ones above in Lynne's photo, would seem to be fairly obvious structural features of a leaf.  But I can't figure out what they're called.  Can you?  (I realize that up close this looks like a giraffe's skin, but I assure you, this is a closeup of a leaf.)  

I started with an easy search:  

     [ leaf veins ] 

and just read around the results for a bit.  The first hit is to a comprehensive (and fascinating) summary of what leaf veins are and how they're organized.  (Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future.  Sack, L., & Scoffoni, C. (2013). New Phytologist, 198(4), 983-1000.

Really interesting, but while I learned a lot about venation structures (first-order, second-order, arrangement of xylem and phloem conduits within veins!), I did not learn what the spaces in-between the veins are called.  

But I DID learn that grapes are dicots, which have a reticulate venation pattern (that is, it's a web-like structure between the veins), and that "veins transport water throughout the lamina mesophyll."  

That is, the leaf (as a whole) is the lamina, while the veins are made up of xylem and phloem cells surrounded by bundles of sheath cells. The vein xylem transports water from the base of the leaf throughout the lamina mesophyll, and the phloem transports sugars out of the leaf to the rest of the plant.  Right? Water comes in through the xylem; nutrients go out via the phloem. 

Generically, the stuff in the middle is the mesophyll, but that's too generic a term. What's a more specific term for those polygonal structures we see? 

I went back to the SERP and found the Wikipedia article on Leaf, wherein I found this: 

"The areas or islands of mesophyll lying between the higher order veins, are called areoles. Some of the smallest veins (veinlets) may have their endings in the areoles, a process known as areolation..."  

Now we've got a specific term: areole.  Let's use that in our search: 

     [ leaf areole ] 

Which gives the satisfying image search result of: 


That image on the far right is from a text about fern leaf architecture, and is basically the same drawing I did above!  

On to the next Challenge! 


1. What is this effect called?   (That is, the polygons changing color independently of the surrounding leaf to create this kind of pattern.)  

This has turned out to be pretty hard. 

I spent a long time trying various queries, looking at lots of image results of grape leaves... and finding results like this, nice, but not polygonal: 







What's more, I was NOT able to find grape leaves that change color areole-by-areole.  As you can see from the images above, generally speaking, grapes change color on a fine-grain size, not by the entire areole changing color at once.  Even the top image in the above set isn't quantized--if you look carefully, you'll see that the areoles change color across a gradient--an entire areole doesn't change all at once.  

I was so surprised by this that I went out and picked up a few grape leaves from the neighborhood (with permission!) for a closer look.  Here are a few of those images at increasing magnification:  




  

In the bottom image you can see the individual cells in the mesophyll (technically, the palisade cells).  The bright out-of-focus lines are the veins.  

And, as you can see, not all of the cells in the areole are of the same color--there's a gradient across the areole from brown (on the far left), through red, to green just before the cells hit the vein.  

So the big Challenge boils down to this: Why do these areoles all change color simultaneously?  

I have to admit that I struck out on this, despite searching extensively on Scholar, News, and Images.  These polygonal red patches are fairly rare!  

Part of the clue might be in the structure of the color changes in Garell's photos.  Here I've annotated a couple of her leaves with purple lines to show that the areoles that change color are the ones farthest from the primary veins. 




What causes leaves to change color in the first place?  As you know, in the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible. The amount and kind of color depends on the carotenes and xanthophyll pigments in the leaf, along with development of red anthocyanin pigments.  

So, in Garell's leaves, the areoles that are most distant from the veins are the ones that change color first. 

While I wasn't able to find a documented explanation for the polygonal areole color changes, I'd be willing to bet that these particular grape leaves had some kind of environmental or biological stress (e.g., a bacterial infection) that let the areoles that are least connected to the main veins lose their chlorophyll first.  Whatever the stressor was, it affected the entire areole, rather than just a part.  Was it a hard freeze during a cold snap?  Or what it something else?  

At this point, we don't know the deep reasons, but just have a suggestion that these particularly lovely images capture a fairly rare color event in the French fall.  Most grape leaves in France don't seem to have these beautiful polygons, but look a bit more generic.  Here's a photo from near Lyon--nice, but no polygons.  



Many thanks to Lynne Garell for letting me use (and annotate) some of beautiful images.  If you liked these images, please check out Lynne's Etsy site for her photography.  It's all beautiful.  


SearchResearch Lessons

Well... there are at least two here, perhaps more... 

1. You won't always succeed.  I'm pretty sure there's an answer out there, somewhere, but I wasn't able to find it this week, despite multiple hours on the task.  It was fun, but I didn't find an answer.  But I WILL keep my eyes open! 

2. Finding a specific term (e.g., areole) can help target your search much better.  And yes, I'll eat my words if someone manages to find the answer to this Challenge and doesn't use areole somewhere in their search process.  


I'll keep looking and will give an update if I learn more about the geometry of color-changing French grape leaves. 

Laissez les bons temps rouler!  

 (I realize this is Cajun French, but it seems appropriate...)  


Search on!